#include <stdio.h>

void swap(int* a, int* b)
{
	int t;

	t = *a;
	*a = *b;
	*b = t;
}

int main(void)
{
	int a, b;

	scanf("%d%d", &a, &b);

	swap(&a, &b);
	
	printf("%d %d\n", a, b);

	return 0;
}
